Oil-can.



THOMAS B. WILKINSON, OF LOS ANGELES, CALIFORNIA.

OIL-C AN.

Specification of Letters Patent.

Patented Sept. 17, 1907.

Application filed May 16,1906. $erial No. 317,111.

To all whom it may concern:

Be it known that I, THOMAS B. WILKINSON, residing in Los Angeles, in thecounty of Los Angeles and State of California, have invented a new andImproved Oil- Can, of which the following is aspecification.

My present invention is in the nature of an improved oil can of thattype in which means are provided for forcibly ejecting the oil throughthe discharging nozzle, and it primarily has for its object, to providean oil can of the character described, of a simple and economicalconstruction, in which the several cooperating parts are so combined asto positively direct the flow oi the oil to the induction or feed end ofthe pumping cylinder at any angle or tilt of the can, and the severalparts so designed that they can be readily assembled or disconnected asdesired.

Generically my present invention comprehends a can having a suitablefilling opening, a detachable nozzle and a pumping mechanism containedwithin the can, actuated under spring action for the inieed oi the oil,and hand pulled for ejecting the oil, and means for so effectivelypacking the plunger rod that escape of oil around it is positivelyovercome.

In its more complete nature, my present invention includes a specialconstruction of pump devices comprising a pumping cylinder open at theinner end, a piston operating in said end, an induction valved feed tubeand a valved eduction tube, (the latter discharging into the cannozzle), located between the outer closed end of the cylinder and thepiston, and a handle for actuating the pump under a pulling action.

In its more subordinate features my invention consists in certaindetails of construction and combination of parts, all of which willhereinafter be fully explained, specifically pointed out in the appendedclaims and illustrated in the accompanying drawing, in which:

Figure 1, is a perspective view of my improved oil can, parts of the canbody being broken away to the more clearly illustrate the internalconstruction. Fig. 2, is a longitudinal section of the can, the severalparts being at their normal position. Fig. 8, is a similar view, theparts being at their fluid ejecting position. Fig. 4, is a horizontalsection on the line 44 on Fig. 2. Fig. 5, is a detail view of thestufling box hereinafter referred to, and Fig. 6, is a cross section onthe line 66 on Fig. 2.

In my present form of oil can, the body 1 is of the standard shape andhas the usual neck 2 to receive the detachable discharge nozzle 3, italso having the capped filling opening 4. About midway its length ismounted the pump cylinder 5 projected across the body 1 with its innerend stopped short of the adjacent side of the can, and open, thereasonior which will hereinafter appear. The cylinder 5 has its outerend fixedly fitted in the annular groove 6 of a stufling box 6O, whichis suitably secured to the side of the can by soldering, or otherwise.The box has a central aperture 61 for the passage of the plunger or pullrod 7, upon which is filled a packing ring or washer 8 held in thesocket :0, formed within the pendent flanges 62 of the box, and withwhich engages the metal washer 9, loosely mounted on the plunger or pullrod 7, and held pressed against the packing 62 by the spring 10 mountedon rod 7 and with its outer end seated against the piston, as clearlyshown in Figs. 2 and 3.

By providing a stufling box arranged as shown, the rod is held tightlyto'its proper position within the cylinder and the packing 8, when thepiston is operated, is compressed tightly about the said rod and therebyforms such a tight joint that leakage of the oil through the stuflingbox is positively overcome.

By having the outer end of the cylinder open, provides for a full forceaction of the spring in returning the piston to its outermost position,since were the said end closed, a vacuum would occur in front of thepiston which would prevent the full back force of the spring.

The piston consists of two inverted cup shaped members 80S0 or a numberof leather washers or other suitable material to the desired thicknessto form good suction held in position by the nuts 8181 that engage thethreaded outer end of the rod 7 and the washers 12 designates aninduction tube that connects with the cylinder near its inner or headend running diagonally downward to the lower side of can at the bottomand carries an inwardly opening flap or ball valve 13, and 14 designatesthe discharging tube of the same diameter as tube 12, which connectswith the cylinder opposite the discharge of the tube 12, and extendsupwardly and discharges into the intake end of the ejector nozzle, andat, its upper end it has an upwardly opening flap or ball valve 15, saidvalve 15 and the valve 13 being suitably weighted to insure a quickclosure action thereof under the suction action of the pump piston, andto provide for conveniently removing the valves for repairs ifnecessary, they may be threaded into the ends of their respective tubes.

The rod 7 is joined to a pull member 17 whose opposite ends are guidedin the grooves 18 formed on the inner sides of the portions 18 oi thecan handle, as best shown in Fig. 6.

From the foregoing taken in connection with'the accompanying drawing,the complete structure and the operation thereof will be apparent. Thecan is handled eject the fluid, the operator after properly placing thenozzle, with finger action, pulls out the rod 7, which causes the supplywithin the cylinder and the tube members to flow up through thedischarging tube, the pressure in the other tube holding the check valvethereon closed, and as the finger pressure is released, the spring forcerelieves the piston, which under suction action, draws in a new oilsupply up the induction V the same as the standard oiler, and whendesired to therein provided near one end with a valved feed tube and adischarging tube, a piston in the cylinder whose rod extends through thecan side, a stufling box for the rod hav ing a pocket, and whichincludes a packing loosely fitted on the rod, and a spring on the rod,one end of which bears on the piston and the other against the packing,for the purposes described.

2. In an oil can of the character described, a stuffing box for thepiston pull rod, and a packing held in said box, and means on the rodfor compressing the packing on the rod as the rod is pulled out, as setforth.

3. In an oil can of the character described, the combination of acylinder projected transversely from one side of the can, whose innerend is open, a valved intake tube that projects downwardly from thecylinder, a valved offtakc tube that projects upwardly therefrom anddischarges into the can nozzle, and the operating piston in the open endof the cylinder having its rod projected outside the can and guided onthe can handle.

4. The hereinbefore described improved oil can c01nprising incombination with the can body, its nozzle, and

handle, the latter having guide grooves; of the open ended cylindersecured to one side of the can and projected inwardly thereof, adischarge tube and suction tube that communicate with the cylinder nearits closed end, the discharge tube extending up into the entrant end ofthe nozzle and provided with a back check valve, the suction pipeextending down to near the bottom of the can and having a back checkvalve in its end, a piston Working in the open end portion of thecylinder and having a rod that projects through the can side, a pullmember on the outer end of the rod whose ends engage the guide groovesin the can handle, a stuffing box for the rod including a packing ringand a spring disposed on the rod, one end of which bears against theaforesaid packing and the other end against the piston, as set forth.

THOMAS B. WILKINSON. Witnesses R. E. WOLCO'rT, A. A. STANNARD.

